53.53% is the change from 340 to 522
Calculation steps:
[( 522 - 340 ) ÷ 340] x 100 = 53.53%
Formula
Percentage change = [(522 - 340) / 340] x 100
Subtract the new number by the original number
522 - 340 = 182
182 ÷ 340 = 0.5352941176470588
0.5352941176470588 x 100 = 53.53%